Snapper wrote:

If it's plain text I can read it. Because they're full of html code I
can't read it. Well, not easily. Hence the question about this.

That's why I said to make an HTM file out of it, open that in the browser,
then copy the rendered data, pasting it back into the Outlook HTML message.
That should preserve the rendering. You can then close and save the
message.
--
Brian Tillman [MVP-Outlook]